删除GTK容器子项,重新填充它,然后刷新

我遇到了GTK C应用程序的问题.我有一个容器,在启动应用程序时,包含一个按钮.在运行期间,用户交互必须使此小部件包含更多这些小部件.
我需要编写一个删除所有“旧”内部按钮的函数,然后从列表中添加所有按钮,最后刷新视图.这就是我写的,但缺少一些部分(TODO)

void refresh_sequence_panel() 
{
    GSList* iterator = NULL;
    GtkWidget* button;

    // TODO: Here the container must be empty

    // Now add all the buttons
    for (iterator = steps; iterator; iterator = iterator->next) {
       button = gtk_button_new_from_stock(GTK_STOCK_ADD);
       gtk_widget_set_size_request(button,SEQ_BUTTON_W,SEQ_BUTTON_H);
       gtk_box_pack_start(GTK_BOX(sequence_panel),button,FALSE,5);
       handler_id = g_signal_connect(G_OBJECT(button),"clicked",G_CALLBACK(seq_popup),GTK_BOX(sequence_panel));
    }

    // TODO: Now refresh the view,so I can see the changes...
}

希望有人能提供帮助,谢谢！

GList *children,*iter;

children = gtk_container_get_children(GTK_CONTAINER(container));
for(iter = children; iter != NULL; iter = g_list_next(iter))
  gtk_widget_destroy(GTK_WIDGET(iter->data));
g_list_free(children);